Ahead of Christmas Microsoft have announced the line-up of games that will be free to download in January via the Games with Gold initiative. Xbox One owners will have the opportunity to download the weird (and some say wonderful) D4: Dreams Don't Die for free during the whole month. Meanwhile Xbox 360 owners get MX vs. ATV Alive January 1-15, and The Witcher 2: Assassins of Kings between January 16-31.
Keep in mind that you need an active Xbox Live gold membership to take advantage of the offer.